Amazing Kids! Magazine

Kitchen Science!

By Isabella Taylor, Poetry Editor


Science is all around us, even right in our own kitchens! You might not have thought about the science of a spaghetti dinner. Science begins when we heat the water to boil our pasta. As the water boils, it turns to gas. The matter is changing from its liquid state to gas. Condensation along with evaporation is happening before our eyes. These are examples of physical changes, where the basic composition of substances remains the same. We add the pasta noodles to cook but it doesn’t end there. A chemical reaction is taking place here as well. By boiling the pasta the molecular structures of the starches change so that pasta changes from hard and brittle to soft, chewy and delicious!

We proceed to make our delicious sauce. Our spaghetti sauce is mixture of tomato, onion, garlic, parsley and some spices. We cook it in a stainless steel pot because it’s a non- reactive metal it will not react with the acid of the tomatoes. This is one way to avoid a metallic taste in our spaghetti sauce and keep our flavors shining through.

There are so many examples of our kitchen as our own science lab! Let’s say we just finished our Italian dinner and being good planners (as all scientist-cooks should be) we decide to venture south of the border tomorrow with guacamole and chips. We know we bought some avocados today, but as we check them we realize they are still green! This would be a disaster of gastronomic magnitude if we didn’t know the secret to speeding up the ripening process. You remember from science class the ethylene gas helps avocados ripen and that apples release this gas. You put an apple with your green avocado in a paper bag overnight and by tomorrow, you should be ready to make delicious heterogeneous mixture of avocados, tomatoes, and onions.  Disaster avoided!

Preparing our dinner has involved many physical and chemical changes but processing the food for eating is only the beginning these chemical reactions continue through the physiology of our body. We eat and break down food in our body to use as fuel for energy to drive all our biological processes.

After eating, we clear our plates from the table and begin the task of washing the dishes.

Washing up the dirty dishes is really a lesson in suspension and the chemical reactions of soap and water. The dirt is suspended in the water.  We could go on and on, but you’re probably getting hungry!  So let’s go and bite into that delicious dinner we just made, but remember the next time you are eating spaghetti with tomato sauce – think science!!!


  1. Tanishka sharma /

    Really helpful

  2. Its really helpfull to me